Eaton S20P11E15CUSS4X Transformer - UL Listed
Part Number: S20P11E15CUSS4X
Quick Summary
Eaton S20P11E15CUSS4X is a general-purpose encapsulated transformer for clean, reliable control-panel power. Many installations battle corrosion, space constraints, and difficult-to-service enclosures that drive downtime. UL Listed certification supports regulatory compliance, while a NEMA 3R enclosure enables rugged indoor-outdoor use and weather exposure. Copper windings with electrostatic shielding improve efficiency and EMI performance, reducing heat and noise. With a 15 kVA rating, primary voltages of 240/480 V and secondary 120/240 V, and taps for ±5% and ±2.5% adjustments, it delivers flexible, scalable power for automation systems, simplifying retrofit projects and maximizing plant uptime.
Product Information
Extended Description
S20P11E15CUSS4X Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: 1 at +5% fcan, 2 at -5% fcbn x 2 at +2.5% fcan, 4 at -2.5% fcbn, sv: 120/240v, 115°c, 15 kva, cu windings, elec. shield, indoor-outdoor
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20P11E15CUSS4X
UPC
786680092343
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Catalog Notes
Grade 304 stainless steel enclosure with NEMA 4X rating
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Tap size
1 at +5% FCAN, 2 at -5% FCBN x 2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
15 kVA
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Encapsulated design with NEMA 3R enclosure provides rugged, space-efficient installation suitable for both indoor and outdoor environments, reducing external protection costs while safeguarding windings from dust and moisture. This translates to lower maintenance needs and longer equipment life in automation cabinets and control rooms. Copper windings deliver lower resistance and improved efficiency, yielding cooler operation and energy savings in 15 kVA applications typical of machine controls and process equipment. Electrostatic shielding minimizes EMI and field interference, supporting reliable sensor and drive performance in proximity to motors and Variable Frequency Drives. The 60 Hz, single-phase configuration with 240/480 V primary and 120/240 V secondary offers straightforward wiring and compatibility with common plant power systems, reducing configuration time and spare-part requirements. Voltage taps, including options for +5%, -5%, and ±2.5% adjustments, enable precise voltage alignment to site variations, minimizing downstream over- or under-voltage stress and extending transformer life. The combination of rugged enclosure, UL Listed status, and compact footprint helps meet procurement standards for industrial projects while enabling easier retrofits in legacy panels. Onsite installation is streamlined by clear labeling and standardized connections, delivering faster commissioning and lower total cost of ownership for control panels, MCCs, and automation cabinets.
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FAQs
The S20P11E15CUSS4X is well-suited for control panels, machine tool cabinets, and process automation. It delivers clean 120/240 V power from a 240/480 V supply, supporting automation drives, relays, and PLC power. Its encapsulated, rugged design simplifies retrofit projects and reduces downtime in harsh industrial environments.
Yes. This transformer provides a single-phase 240/480 V primary and 120/240 V secondary configuration. It also offers voltage-tap adjustments to compensate site variances, helping maintain stable downstream voltages and reduce nuisance tripping during startup or peak loads.
The unit is UL Listed and features a rugged enclosure with a NEMA 3R rating suitable for indoor-outdoor installations. Its electrostatically shielded, copper-windings construction supports EMI performance and dependable operation in challenging environments, aligning with common regulatory and customer procurement requirements.
Voltage taps provide discrete ± voltage adjustments to match site supply variations. Use the +5% tap to compensate for higher line voltages and the -5% or ±2.5% taps to align with exact downstream requirements. Always verify voltages with a calibrated meter before energizing equipment to prevent over-stress and ensure proper operation.
Maximize uptime by installing the rugged, encapsulated unit in a compliant enclosure, confirming proper sealing and clearance. Regularly inspect windings, shielding, and terminations for signs of moisture or corrosion; perform insulation testing per maintenance schedules; and document voltage tap configurations during commissioning to simplify future adjustments and reduce downtime during upgrades.